24 january 2017
The standards committee Green Roof recently published the NTA (Dutch Technical Agreement) for green roofs. RHP also cooperated on the realisation of this NTA. The NTA is fully in line with the standards for RAG Green Roof.
The NTA for green roofs gives the determination methods for the performance of the green roof as a whole in its architectural application. The NTA is the first step to recording the effects of the roof growth system on roofs concerning wind resistance, water retention and fire hazard.
The NTA is meant for roofs with attached or loose, closed roof paving systems supplied with a roof growth system and contains:
This NTA gives the market information that makes it easier to get more insight in the performance of green roofs.